CVE-2024-31816Public exploitNetwork attack vector

Wi-Fi credential disclosure via unauthenticated configuration request

Published Apr 8, 2024 · Updated Aug 14, 2024

Information disclosure in TOTOLINK EX200 Firmware 4.0.3c.7646_B20201211 allows remote attackers to read Wi-Fi credentials. The getEasyWizardCfg function returns the configured Wi-Fi SSID and password without checking whether the requester has authenticated through /login.asp. Network reachability to the device management interface is sufficient; the documented consequence is disclosure of those wireless credentials.

CVSS severity7.5
High
EPSS probability2.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in TOTOLINK EX200 Firmware 4.0.3c.7646_B20201211 allows remote attackers to read Wi-Fi credentials. The getEasyWizardCfg function returns the configured Wi-Fi SSID and password without checking whether the requester has authenticated through /login.asp. Network reachability to the device management interface is sufficient; the documented consequence is disclosure of those wireless credentials.

The record

CVE
CVE-2024-31816
Published
Apr 8, 2024
Updated
Aug 14, 2024
Vendor
TOTOLINK
Product
EX200 Firmware
Classifications
CWE-200, T1552
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 8, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 14, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.0.3c.7646_b20201211

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · EX200 Firmwareversion=4.0.3c.7646_b20201211

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1552Unsecured Credentials

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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